Can somebody explain cultural assimilation to me

[removeduser_487563287433]

So, what I understand is that to assimilate into your main culture a province must be;

bordering a province with your culture,
both the province and the border must be cores and the state religion.

But is there anything else? In my current Byzantine game Anatolia is very, very slowly turning into Greek lands, but in my Russian game cultural assimilation was such a powerful force that by the end there were barely any Tartar provinces left in existance.

[Musthavename]

Here's the codey bit:

    trigger = {
        is_core = THIS
        NOT = { revolt_risk = 1 }
        has_owner_religion = yes
        has_owner_culture = no
        
        OR = {
            is_capital = yes
            AND = {
                cot = yes
                placed_merchants = 5
            }
            any_neighbor_province = {
                owned_by = THIS
                has_owner_religion = yes
                has_owner_culture = yes
            }
        }
    }

So, it must first of all, not be your culture, and must have no or very little revolt risk, must be a core and must share your religion. Then, it either needs to be a CoT (this is HTTT only I believe), is your capital, or has a desired culture, right religion neighbour. MTTT is 3000 months.

Now the exemptions that speed it up for certain cultures.

There is a factor of 0.1 (i.e. happens 10 times faster on average), for places in the "Turkey" region. That happens with Turkish / Greek culture group provinces. There is the Slavic/Tartar one, which speeds up conversion of Khazak, Siberian, Tartar and Kirgiz cultured provinces to nations in the East/West Slavic, or Baltic culture groups (which usually means Russia). This is also factor 0.1. Then there's a 0.05 modifier (20 times faster) for Saxon/Pommeranian cultures to convert to Prussian. There's also one other one which applies a 0.05 modifier to colonies.

Other modifiers that apply to ALL cultures are as follows:

The following increase the speed at which the event happens:
- National Focus
- Both cultures share the same culture group
- The province to change culture is your capital.
- You have the national ideas Church Attendence Duty and / or Divine Supremecy.
- You have stability (one kicks in at anything positive, the other only at +3)
- Your Serfdom/Free Subjects slider is on the Serfdom Side (this is only a 0.9 modifier, so not much differnce incase you're thinking Serfdom now means something useful).

The following decrease the speed at which the event happens:
- You lack stability (one kicks in at being negative, the other at -2 or below).
- You have the national ideas; Humanist Tolerance (twice as long), Liberty/Egality/Fraternity (twice as long, too lazy to spell it properly), Ecunumism (1.5 times as long).
- You're sufficientnly "free subjects". (this is either at, or above 2, i'm not sure which).
- Cities (that are not your capital) are also less likely at certain population bounds. Chances are, anything over 100k population will in all likelyhood, not convert cultures.

That's pretty much it. If you want more detail, go eu3\events\culturalspread.txt. It's all in there, along with the Settlement Policy event.

[Pious Agnost]

Here's an article on it.

http://www.paradoxian.org/eu3wiki/Cultural_Assimilation

As usual it's both complicated and simple.